Mix yellow cake mix according to package directions with 1 cup water, 3 eggs, and oil
Cover the bottom of a 9x13 baking dish with mini marshmallows
Pour the cake mix on top of the marshmallows and spread around edges with a fork to ensure even coverage
Cover the entire cake mix layer with sliced strawberries
Sprinkle the strawberry Jell-O powder over the top, making sure to cover all edges
Slowly pour ⅔ cup water over the Jell-O mix
Bake at 350°F for 45 minutes to 1 hour (approximately 55 minutes)
Allow to cool and serve
Variations
If you make this viral Magic Cake, feel free to get experimental. Commenters suggested swapping in lemon Jell-O mix and frozen blueberries, using strawberry cake mix, frozen cherries, and many other combinations to get the fruity Magic Cake of their dreams. So let your imagination run wild, and make some magic happen in your oven.
